ELAVL1 and lung carcinoma: Previous data showed that exosome-mediated transport of functional proteins into cancer cells can lead to proliferation and metastatic properties in lung cancer.7 Therefore, we then explored the role of exosomal HuR and found that it enhanced the migration and invasion of BEAS-2B cells compared with untreated cells and cells treated with KO exosomes (Figure 3a and b).